1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.servlet.filters.strip;
24  
25  import com.liferay.portal.kernel.util.ByteArrayMaker;
26  import com.liferay.portal.kernel.util.StringPool;
27  
28  import java.io.IOException;
29  import java.io.OutputStreamWriter;
30  import java.io.PrintWriter;
31  
32  import javax.servlet.ServletOutputStream;
33  import javax.servlet.http.HttpServletResponse;
34  import javax.servlet.http.HttpServletResponseWrapper;
35  
36  /**
37   * <a href="StripResponse.java.html"><b><i>View Source</i></b></a>
38   *
39   * @author Brian Wing Shun Chan
40   */
41  public class StripResponse extends HttpServletResponseWrapper {
42  
43      public StripResponse(HttpServletResponse response) {
44          super(response);
45      }
46  
47      public void finishResponse() {
48          try {
49              if (_writer != null) {
50                  _writer.close();
51              }
52              else if (_stream != null) {
53                  _stream.close();
54              }
55          }
56          catch (IOException e) {
57          }
58      }
59  
60      public void flushBuffer() throws IOException {
61          if (_stream != null) {
62              _stream.flush();
63          }
64      }
65  
66      public ServletOutputStream getOutputStream() {
67          if (_writer != null) {
68              throw new IllegalStateException();
69          }
70  
71          if (_stream == null) {
72              _stream = createOutputStream();
73          }
74  
75          return _stream;
76      }
77  
78      public PrintWriter getWriter() throws IOException {
79          if (_writer != null) {
80              return _writer;
81          }
82  
83          if (_stream != null) {
84              throw new IllegalStateException();
85          }
86  
87          _stream = createOutputStream();
88  
89          _writer = new PrintWriter(new OutputStreamWriter(
90              //_stream, _res.getCharacterEncoding()));
91              _stream, StringPool.UTF8));
92  
93          return _writer;
94      }
95  
96      public boolean isCommitted() {
97          if (_stream != null) {
98              return true;
99          }
100         else {
101             return super.isCommitted();
102         }
103     }
104 
105     public String getContentType() {
106         return _contentType;
107     }
108 
109     public void setContentType(String contentType) {
110         _contentType = contentType;
111 
112         super.setContentType(contentType);
113     }
114 
115     public byte[] getData() {
116         finishResponse();
117 
118         return _bam.toByteArray();
119     }
120 
121     protected ServletOutputStream createOutputStream() {
122         return new StripStream(_bam);
123     }
124 
125     private ByteArrayMaker _bam = new ByteArrayMaker();
126     private ServletOutputStream _stream = null;
127     private PrintWriter _writer = null;
128     private String _contentType;
129 
130 }